Honors Chemistry Final Review

The solution started to foam and fizz.

Did a chemical reaction occur?

• Yes, there was a chemical reaction

• No, there was not a chemical reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is the following equation balanced?
2C₂H₂ + 5O₂ --> 4CO₂ + 2H₂O

• yes

• no

Tags

NGSS.HS-PS1-7

Is the following reaction balanced?
2CH₃OH + 3O₂ --> 2CO₂ + 4H₂O

• yes

• no

Tags

NGSS.HS-PS1-7

Balance this equation
_Al +_HCl --> _H₂ +_AlCl₃

• 2, 6, 3, 2

• it is already balanced

• 4, 12, 3, 4

• 2, 1, 4, 5

Tags

NGSS.HS-PS1-7

Which of the following is a balanced chemical equation for the reaction between hydrogen gas and oxygen gas to form water?

Tags

NGSS.MS-PS1-5

Based on the energy profile diagram, describe the net energy change in a chemical reaction. The energy of the reactants is ​ (a)   than the energy of the products resulting in a net ​ (b)   energy change.

• less

• positive

• greater

• negative

Tags

NGSS.HS-PS1-4

Which of the following is an example of a single replacement reaction?

Which of the following is an example of a double replacement reaction?

When the equation NH₃ + O₂ --> HNO₃ + H₂O is completely balanced using smallest whole numbers, the coefficient of O₂ would be

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-7

How is a synthesis reaction different from other types of chemical reactions?

• A synthesis reaction breaks down a complex substance into simpler products.

• A synthesis reaction involves the exchange of ions between two compounds.

• A synthesis reaction combines two or more simple substances to form a more complex product.

• A synthesis reaction does not involve the formation of a new substance.